Before I start up my game I make sure that my Max RAM usage is set to about 4 Gb. when I get into the game I every about 30 min, depending on what is happening, so I alt-tab out of my game to check my task manager to see my RAM usage. When I get on it, it shows that my Minecraft is using up every single drop of RAM available up to my RAM usage going to 7.8 Gb, out of my 8, causing a lot of issues. Minecraft consisting of about 6.5 Gb of that usage. I don't understand why the max RAM usage is not working but I would kindly like to ask for help.